| 41. | The layer has grown even thinner, largely due to ozone-destroying chemicals such as CFCs and halons.
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| 42. | They did not want to make a large investment in equipment using halon and then have to change it.
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| 43. | She said the ODS used in fire-fighting industry in Malaysia are predominantly the Halon 1301 and 1211.
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| 44. | And the Halon gas is being replaced with a modern substitute in the rare book area, Lauziere said.
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| 45. | Exposure to Halon 1301 in the 5 to 7 percent range produces little, if any, noticeable effect.
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| 46. | In practice, the operators of many Halon 1301 total flooding systems evacuate the space on impending agent discharge.
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| 47. | An onboard halon extinguishing system put the oil fire out and an uneventful single-engine landing was made.
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| 48. | Then methods like foam or halon gas are used, which primarily extinguish fires by depriving them of oxygen.
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| 49. | Halon fire suppression systems quickly inundate an affected fire breach with a flood of halon to extinguish leaking fuel.
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| 50. | Halon fire suppression systems quickly inundate an affected fire breach with a flood of halon to extinguish leaking fuel.
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